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DCL ENGINEERING GROUP
DCL E ng ineer i ng G ro up – T he I nno v at iv e E dg e in E ng ineer i ng So lutio ns
27 Malta Street
Fairfield East
NSW 2165
Ph: (02) 9754 1300
Fax: (02) 9754 1400
www.dcleng.com.au
Technical Bulletin
Pump Refurbishment
No:21 95 1
Issu ed: 2 00 6
Many component parts of pumps can be refurbished at DCL Surface
Engineering and returned to ‘as new’ condition, often extending the in -
service life of that part for a fraction of the cost of replacement.
The Drive Shafts pictured
to the right are received
in a badly worn
condition. They are pre-
machined and grit
blasted. The blasted
surface is then sprayed
with an extremely hard
wear and corrosion
resistant coating of
Chrome Carbide and
ground finished. Service
life can be increased by
up to 4 times with this
coating!
This bronze impellor
wears in service and is
refurbished with arc
spray. The bearing
locations and wear ring
OD’s are first undercut to
remove any spalled or
damaged material. Pre-
heat is applied to remove
any surface moisture,
followed by a grit blast
and a build-up with arc
spray and a final machine
back to dimension
BEFORE AFTER
DCL ENGINEERING GROUP
DCL E ng ineer i ng G ro up – T he I nno v at iv e E dg e in E ng ineer i ng So lutio ns
27 Malta Street
Fairfield East
NSW 2165
Ph: (02) 9754 1300
Fax: (02) 9754 1400
www.dcleng.com.au
DCL Surface Engineering can cast
iron weld or metal spray worn areas
such as cut waters, thrust faces,
saddles and machine back to
original.
Where a pump casing may have
suffered extensive corrosion or
fretting of the joint faces we can
refurbish both faces with a stainless
steel arc spray wire. Once the faces
have been rebuilt we then surface
grind them back to top size.
We manufacture pump sleeves with
a PTA (plasma transferred arc) wear
resistant coating for extreme wear
environments. This extremely hard
wearing coating will outlast an ‘off
the shelf’ stainless steel sleeve by
up to six times!
For further information regarding any of the above applications please
contact us at DCL Surface Engineering.
Managing Director Greg Green 0418 167 666

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Tech Bulletin DCLEG - 21951 Pump Refurbishment

  • 1. DCL ENGINEERING GROUP DCL E ng ineer i ng G ro up – T he I nno v at iv e E dg e in E ng ineer i ng So lutio ns 27 Malta Street Fairfield East NSW 2165 Ph: (02) 9754 1300 Fax: (02) 9754 1400 www.dcleng.com.au Technical Bulletin Pump Refurbishment No:21 95 1 Issu ed: 2 00 6 Many component parts of pumps can be refurbished at DCL Surface Engineering and returned to ‘as new’ condition, often extending the in - service life of that part for a fraction of the cost of replacement. The Drive Shafts pictured to the right are received in a badly worn condition. They are pre- machined and grit blasted. The blasted surface is then sprayed with an extremely hard wear and corrosion resistant coating of Chrome Carbide and ground finished. Service life can be increased by up to 4 times with this coating! This bronze impellor wears in service and is refurbished with arc spray. The bearing locations and wear ring OD’s are first undercut to remove any spalled or damaged material. Pre- heat is applied to remove any surface moisture, followed by a grit blast and a build-up with arc spray and a final machine back to dimension BEFORE AFTER
  • 2. DCL ENGINEERING GROUP DCL E ng ineer i ng G ro up – T he I nno v at iv e E dg e in E ng ineer i ng So lutio ns 27 Malta Street Fairfield East NSW 2165 Ph: (02) 9754 1300 Fax: (02) 9754 1400 www.dcleng.com.au DCL Surface Engineering can cast iron weld or metal spray worn areas such as cut waters, thrust faces, saddles and machine back to original. Where a pump casing may have suffered extensive corrosion or fretting of the joint faces we can refurbish both faces with a stainless steel arc spray wire. Once the faces have been rebuilt we then surface grind them back to top size. We manufacture pump sleeves with a PTA (plasma transferred arc) wear resistant coating for extreme wear environments. This extremely hard wearing coating will outlast an ‘off the shelf’ stainless steel sleeve by up to six times! For further information regarding any of the above applications please contact us at DCL Surface Engineering. Managing Director Greg Green 0418 167 666